Grain-binder.



PATBNTED MAR. 3l,

J W WEBSTER GRAIN ]EIND}R. r

' APPLIUATION FILED MAY 6, 1902.

N0 MODEL.

l UNITED STATES PATENT Omron.

, JOHN W. WEBSTER, OF CHICAGO, ILLINOIS, ASSIGNOR TO DEERING HARVESTER COMPANY, OF CHICAGO, ILLINOIS.

GRAIN-BINDER.

(SPECIFICATION foming part of Letters Patent No. 723,955, dated March. 31, 1903.

Application tiled May 5, 1902. Serial No. 10 5,935. (No modeln C To all wtont it may con/cern:

Be it known that I, JOHN W. WEBSTER, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Grain-Binders, of which the following is a full description, reference being had to the accompanying drawings, in which- Figure l is a front end View of an ordinary Appleby binder of the type manufactured by the Deering Harvester Company, showing my improvements; Fig. 2, a similar end View, partly in section, but showing the operative parts in diderent positions; and Fig. 3a top` view of the same parts.

In the drawings, A is the main binder frame, U-shaped in form, lying horizontally, as usual.

B is the needle-shaft, and b the needlecrank.

C is the usual knotter driving-shaft.

D is the bevel-gear, having the crank-wrist d, by which the needle is driven.

E is the needle-pitman, extending from the wrist d to the wrist b' on the needle-shaft crank. A

F is the compressor-link, ot' the usual form, generally speaking, but modified somewhat in construction to answer my purposes.

G is what is generally termed the packershaft. It is the motor-shaft, as usual, in binders of this class. Upon it is loosely placed the bevel-gear g, and on it is also permanently secured the driver g. Upon the pinion is the spring-actuated driving-dog g2. Pivoted on the needle-shaft is the detent H, connected to the needle-shaft crank by the usual spring I. Reaching in the opposite direction from the detent H and as one part with it is the stop K. l

L is a shaft having upon its lower end the bevel-pinion Z, adapted to intermesh with the gear g, and upon its upper end is the pinion Z', adapted to mesh into the bevelgear D. Pivoted in the main frame at m is the compressor-lever M, having upon one end the antifriction-roller'm', and pivoted in its upper end at m2 the compressor-spring rod f. Upon the gear D is the cam d', which has the prominence. d2.

N is the compressor-shaft, having the crank of a foot f on the compressor-link and the stop K upon the detent H, means by which they are made to cooperate and produce the p desired result. With the compressor-lever M and the prominence cl2 of the cam in position shown, downward pressure upon the said lever holds the knotter driving-shaft C from making any retrograde movement. In short, in common parlance the binder is held home. In order to produce downward spring-pressure upon the said lever, I resort to a well-known expedient, which consists in placing a bracket P upon the binder-frame, having a spring-held 'pin p', which rests upon the lever M, as shown in Figs. 1 and 2. This spring is given sufticient scope to cause the roller m to press behind the prominence d2 when the parts are in the position shown in Fig. l.

started from its home position (shown in Fig.

krl) the compressor-lever M will be moved to draw the compressor, through the instrumentality of the spring-link, in the usual manner gradually against the bundle while it is being bound. When the parts are inthe position shown in Fig. 1, the foot f' rests upon the stop K of the detent H. If now the compressor is moved by the grain pressed against it by the packers, the foot f will be forced downward upon the stop K and the detent will be raised from its position of rest against the driving-dog g?, and the clutching device thus be permitted to engage. When the needle-crank is drawn upward, the stop K is movedv away from the foot f on the compressor-link; but when the needle-crank is returned to its home position and the detent H carried with it, the stop K, being as one piece with the latter, is brought to position to meet the foot f again, where it remains The cam d isv made eccentric, so that when the binder isuntil the said foot presses downward under ICO bundle. If, however, it is desired to have a weaker spring than that ordinarily used in a compressor-link, the construction of springlink shown in the patent granted to Charles \Vhitney, No. 295,510, dated March 1S, 1884, may be resorted to. The prominence cl2 is made quite high, so that the compressor-link is drawn well upward for an instant, and the detent H and the stop K are permitted to rise fully to position. The roller m passing over the prominence permits the link to drop so much as to permit the foot f to rest upon the said stop I( when it is fully in position for performingits office, when the compressor is again moved by the accumulating bundle. In Fig. 2 the cam has reached a position where in its further movement in the direction indicated by the arrow the lever M will permit the compressor to drop, the stop K `.pressor-leveractuated by said cam and adapted to operate said com presser-actuating link, and an oscillating clutch-detent supported upon a stationary pivot and having an arm thereon in such a position as will adapt it to be engaged by the foot of the said compressoractuating link, all combined substantially as described.

JOHN W. WEBSTER. In presence of- J. C. WARNES, EDWARD R. BARRETT. 

